123769855 has 16 divisors (see below), whose sum is σ = 162282528. Its totient is φ = 89872000.

The previous prime is 123769823. The next prime is 123769871. The reversal of 123769855 is 558967321.

It is not a de Polignac number, because 123769855 - 2⁵ = 123769823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43785 + ... + 46525.

It is an arithmetic number, because the mean of its divisors is an integer number (10142658).

Almost surely, 2^123769855 is an apocalyptic number.

123769855 is a deficient number, since it is larger than the sum of its proper divisors (38512673).

123769855 is a wasteful number, since it uses less digits than its factorization.

123769855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578.

The product of its digits is 453600, while the sum is 46.

The square root of 123769855 is about 11125.1901107352. The cubic root of 123769855 is about 498.3543965872.

The spelling of 123769855 in words is "one hundred twenty-three million, seven hundred sixty-nine thousand, eight hundred fifty-five".